IMHO the greatest in these categories are:
Greatest love story: The Painted Veil (2007)
Greatest drama: Suddenly Last Summer
Greatest western: High Noon
Greatest sci-fi flick: Forbidden Planet
Greatest Christmas movie: A Christmas Story
Greatest horror film: The Ring
Greatest film trilogy: The Lord of the Rings
Greatest gross-out comedy: There Something About Mary
Greatest animated film: Fantasia
Greatest silent film: Wings
Greatest chick flick: Fried Green Tomatoes
Greatest war movie: Saving Private Ryan
Greatest tragedy: Leaving Las Vegas
Greatest David Lean film: Doctor Zhivago
Greatest Stanley Kubrick film: 2001: A Space Odyssey
Greatest John Ford film: The Quiet Man
Greatest Alfred Hitchcock Movie: Vertigo
Greast Steven Spielberg film: Schindler's List
Most Underappreciated Classic: The Birth of a Nation
Most Underappreciated Modern Classic: Eyes Wide Shut
Most Undeserving Classic: Caddyshack
Greatest Film of the 1910's: Intolerance
Greatest Film of the 1920's: The Hunchback of Notre Dame
Greatest Film of the 1930's: Gone With The Wind
Greatest Film of the 1940's: It's A Wonderful Life
Greatest Film of the 1950's: Sunset Boulevard
Greatest Film of the 1960's: Midnight Cowboy
Greatest Film of the 1970's: Star Wars
Greatest Film of the 1980's: Raging Bull
Greatest Film of the 1990's: The Usual Suspects
Greatest Film of the 2000's: The Lord of the Rings: The Return of the King
nice, some good choices. Ill have a think and see if I can come up with a list. minus some categories e.g. 'silent film'...'greatest film of the 1920s' etc., wouldn't have a clue about those...
OK, I'll play.
LOVE STORY: Casablanca
DRAMA: The Godfather
WESTERN: The Good, the Bad and the Ugly
SCI-FI: 2001: A Space Odyssey
CHRRISTMAS: Miracle on 34th Street
HORROR: Night of the Living Dead
TRILOGY: Lord of the Rings
GROSS-OUT COMEDY: Animal House
ANIMATED: Fantasia
SILENT: The Cabinet of Dr. Caligari
CHICK FLICK: Ooh, tough one... Thelma & Louise?
WAR: Apocalypse Now
TRAGEDY: Five Easy Pieces
DAVID LEAN: Bridge on the River Kwai
KUBRIK: 2001
FORD: abstain, haven't seen enough
HITCHCOK: Vertigo
SPIELBERG: Schindler's List
UNDERAPPRECIATED CLASSIC: The Seven Samurai
UNDERAPPRECIATED MODERN CLASSIC: Network
UNDESERVING CLASSIC: Good Will Hunting
1910s: abstain
1920s: Metropolis
1930s: The Wizard of Oz
1940s: Casablanca
1950s: Sunset Boulevard
1960s: La Dolce Vita
1970s: The Godfather
1980s: Amadeus
1990s: Pulp Fiction
2000s: reserving judgement.
I couldn't answer nearly half those, so I put a couple of my own categories at the end.
Greatest love story: Wild At Heart (david lynch)
Greatest western: Good The Bad & The Ugly
Greatest sci-fi flick: Species
Greatest Christmas movie: Home Alone
Greatest horror film: The Howling
Greatest film trilogy: Naked Gun 1, 2 1/2, 33 1/3rd
Greatest gross-out comedy: Freddy Got Fingered
Greatest animated film: Jungle Book
Greatest war movie: The Deer Hunter
Greatest Stanley Kubrick film: A Clockwork Orange
Greatest Alfred Hitchcock Movie: Psycho
Greast Steven Spielberg film: Jaws
Most Underappreciated Classic: Faster p***ycat Kill! Kill!
Most Underappreciated Modern Classic: Dazed & Confused
Most Undeserving Classic: The Exorcist
Greatest Film of the 1960's: The Graduate
Greatest Film of the 1970's: Jaws
Greatest Film of the 1980's: Pee Wee's Big Adventure
Greatest Film of the 1990's: Pulp Fiction
additions...
Greatest Gangster Film: Goodfellas
Greatest 'Whodunnit': Profondo Rosso a.k.a. Deep Red
Worst Sequel: Speed 2
Interesting idea; I'd have to think about several of these before committing, hence the question marks:
Greatest love story: OSSESSIONE (1943)
Greatest drama: LONG DAY'S JOURNEY INTO NIGHT (1962)
Greatest western: MY DARLING CLEMENTINE (1946)
Greatest sci-fi flick: THE THING FROM ANOTHER WORLD (1951)
Greatest Christmas movie: SCROOGE (1951)
Greatest horror film: TEXAS CHAINSAW MASSACRE (1974)
Greatest film trilogy: STAR WARS (1977)
Greatest gross-out comedy: PINK FLAMINGOS (1972)
Greatest animated film: PINOCCHIO (1940)
Greatest silent film: CITY LIGHTS (1931)
Greatest chick flick: THELMA AND LOUISE (1991)
Greatest war movie: ?
Greatest tragedy: GERMANIA ANNO ZERO (1948)
Greatest David Lean film: GREAT EXPECTATIONS (1946)
Greatest Stanley Kubrick film: BARRY LYNDON (1975)
Greatest John Ford film: THE GRAPES OF WRATH (1940)
Greatest Alfred Hitchcock Movie: REAR WINDOW (1954)
Greast Steven Spielberg film: JAWS (1975)
Most Underappreciated Classic: ?
Most Underappreciated Modern Classic: ?
Most Undeserving Classic: ?
Greatest Film of the 1910's: ?
Greatest Film of the 1920's: THE GOLD RUSH (1925)
Greatest Film of the 1930's: ?
Greatest Film of the 1940's: ?
Greatest Film of the 1950's: ALL ABOUT EVE (1950)
Greatest Film of the 1960's: LA DOLCE VITA (1960)
Greatest Film of the 1970's: THE GODFATHER (1972)
Greatest Film of the 1980's: ?
Greatest Film of the 1990's: ?
Greatest Film of the 2000's: ?
I'll play along but will note there's still plenty I need to see.
Greatest love story: The Apartment (1960)
Greatest drama: The Shawshank Redemption
Greatest western: The Magnificent Seven
Greatest sci-fi flick: The Day the Earth Stood Still
Greatest Christmas movie: Scrooge (1951)
Greatest horror film: The Texas Chain Saw Massacre (1974)
Greatest film trilogy: Back to the Future
Greatest gross-out comedy: Shaun of the Dead
Greatest animated film: Watership Down
Greatest silent film: The Phantom of the Opera
Greatest chick flick: Grease
Greatest war movie: All Quiet on the Western Front (1930)
Greatest tragedy: On the Waterfront
Greatest David Lean film: The Bridge on the River Kwai
Greatest Stanley Kubrick film: Paths of Glory
Greatest John Ford film: The Quiet Man
Greatest Alfred Hitchcock Movie: The Man Who Knew Too Much (1934)
Greast Steven Spielberg film: Jaws
Most Underappreciated Classic: Quatermass and the Pit
Most Underappreciated Modern Classic: The Princess Bride
Most Undeserving Classic: Titanic
Greatest Film of the 1910's: Conquest of the Pole
Greatest Film of the 1920's: The Phantom of the Opera
Greatest Film of the 1930's: The Hunchback of Notre Dame
Greatest Film of the 1940's: The Maltese Falcon
Greatest Film of the 1950's: On the Waterfront
Greatest Film of the 1960's: Planet of the Apes
Greatest Film of the 1970's: Jaws
Greatest Film of the 1980's: Blade Runner
Greatest Film of the 1990's: Toy Story
Greatest Film of the 2000's: Shrek
Greatest war movie: THE LONGEST DAY (1962)
Greatest Film of the 1930's: YOU CAN'T TAKE IT WITH YOU
Greatest Film of the 1980's: HANNAH AND HER SISTERS (1986)
Most Underappreciated Classic: OLIVER TWIST (1948 ~ DAVID LEAN's followup to the superb GREAT EXPECTATIONS) Though GREAT EXPECTATIONS is a well admired film, OLIVER TWIST seems overlooked and it's just as good.
Most Undeserving Classic: TERMS OF ENDEARMENT